02079nas a2200145 4500008004100000245012500041210006900166300000900235490000700244520151600251653007601767100001901843700002101862856005001883 2006 eng d00aVegetation of quartz fields in the Little Karoo, Tanqua Karoo and eastern Overberg (Western Cape Province, South Africa)0 aVegetation of quartz fields in the Little Karoo Tanqua Karoo and a1-440 v363 aQuartz fields are a very special habitat characterised by occurrence of pavements of angular quartz debris being the result of weathering of quartz veins embedded in soft bedrock (shale, phyllite). Quartz fields support vegetation dominated by leaf-succulent dwarf shrubs, belonging to the Aizoaceae (mainly subfamilies Mesembryanthemoideae and Ruschioideae), Crassulaceae and Asteraceae. In this study we have described and classified plant communities of the quartz fields of the Little Karoo and adjacent regions (Tanqua Karoo, Overberg) in the Western Cape Province (South Africa). Here we present data and ideas on species composition, life-form texture, physiognomic structure, species richness, habitat preferences, geographic distribution, and conservation status of the quartz fields and their constituent plant species. Locally endemic taxa of the genus Gibbaeum (Haw.) N. E. Br. (Aizoaceae) are dominating most of the studied quartz fields. This paper features sixteen plant communities, all of them formally described as new associations and all of them, except for the Drosanthemo-Psilocauletum juncei, largely limited to quartz field habitats. They are classified into 5 community groups, of which the Gibbaeion angulipedis, Gibbaeo dispar-Lampranthylion altistyli and Gibbaeo nuciformi-Pteronion viscosi are being formally recognized as alliances. This paper is a pioneering attempt to present a first formal syntaxonomy of the vegetation of a region of the Succulent Karoo Biome in South Africa.10aAizoaceae, Gibbaeum, phytosociology, semi-desert, Succulent Karoo Biome1 aSchmiedel, Ute1 aMucina, Ladislav uhttps://juncaginaceae.myspecies.info/node/31402090nas a2200169 4500008004100000245012300041210006900164300001000233490000700243520143500250653009601685100002101781700002601802700002101828700002101849856005001870 2005 eng d00aPatterns of functional clonal traits and clonal growth modes in contrasting grasslands in the central Apennines, Italy0 aPatterns of functional clonal traits and clonal growth modes in  a29-360 v163 aAim: Patterns of plant functional traits related to clonality (clonal growth modes; CGM) in plant communities were studied and hypotheses on the importance of the selected traits in plant communities supported by soils differing in moisture and nutrient status were tested.Material and Methods: Selected plant functional traits, such as the position of the mother-daughter plants connections, length of spacers, frequency of multiplication, persistency of ramets connections, presence of storage organs and bud protection were studied in two contrasting plant communities (xeric and mesic abandoned pastures) typical of central Apennines, Italy.Results and Discussion: Clonality was shown to be of great importance in both mesic and xeric grasslands. The major differences between the two communities were due to the dominant CGMs: turf graminoids (having effective protection of growth meristems in dense tussocks) dominated xeric grasslands, while rhizomatous graminoids (typical of competitive resource-rich environments) dominated mesic grasslands. Below-ground CGOs (clonal growth organs), shorter spacers, higher multiplication potential, permanent ramet connection, large bud bank and increased importance of bud protection were found to be of importance in water stressed xeric grassland. Contrary to our expectations, the mesic (less stressed) grasslands have the higher number of clonal plants possessing storage organs.10aAdaptation, clonality, ecological stress, plant functional trait, Torricchio Nature Reserve1 aHalassy, Melinda1 aCampetella, Giandiego1 aCanullo, Roberto1 aMucina, Ladislav uhttps://juncaginaceae.myspecies.info/node/13102053nas a2200301 4500008004100000245009800041210006900139300001200208490000700220520114200227653002601369653001901395653001201414653003301426653001801459653003501477653001501512653001301527653001701540653001301557653001501570653001701585100002301602700001901625700002101644700002501665856006101690 2010 eng d00aRevision of the Mediterranean and Southern African Triglochin bulbosa complex (Juncaginaceae)0 aRevision of the Mediterranean and Southern African Triglochin bu a353-3980 v673 a

The Triglochin bulbosa complex (Juncaginaceae) from the Mediterranean region and Africa is revised. One new species, Triglochin buchenaui Köcke, Mering & Kadereit, and two new subspecies, Triglochin bulbosa subsp. calcicola Mering, Köcke & Kadereit and Triglochin bulbosa subsp. quarcicola Mering, Köcke & Kadereit, are described from South Africa. The only two Mediterranean taxa in the complex (Triglochin barrelieri, T. laxiflora) are elevated to species rank. Altogether seven species and four subspecies are recognised: Triglochin barrelieri, T. buchenaui, T. bulbosa subsp. bulbosa, T. bulbosa subsp. calcicola, T. bulbosa subsp. quarcicola, T. bulbosa subsp. tenuifolia, T. compacta, T. elongata, T. laxiflora and T. milnei. An identification key, detailed descriptions and accounts of the ecology and distribution of the taxa are provided. An IUCN conservation status is proposed for each taxon.

10aCape Floristic Region10aCape Peninsula10aecology10aIUCN conservation assessment10aJuncaginaceae10aMediterranean Floristic Region10amorphology10arevision10aSouth Africa10ataxonomy10aTriglochin10atypification1 aKöcke, Valerie, A1 aMering, Sabine1 aMucina, Ladislav1 aKadereit, Joachim, W uhttp://journals.cambridge.org/abstract_S0960428610000041